1990 240 will not start after rainfall

[Wildelyle]

Mine stumped me for years it's the crank sensor plug or follow the wires down to the bell housing water gets in the plug to the crank sensor shorts out the signal I bet that'll fix it for you the crank sensor plugs up on the firewall in the middle towards the passenger side it goes down to the top of the transmission on the bellhousing

 

[Wildelyle]

This car will not start after rainfall. Engine cranks but will not
start. This has happened a few times this year, sometimes the car will
start the next day after the rain stops.

Have you tried all the obvious places make sure and check the crank sensor plug on the firewall it goes down to the bell housing on the transmission it had me stumped for years that was my problem good luck